#region Copyright (c) 2006-2012 nHydrate.org, All Rights Reserved
//--------------------------------------------------------------------- *
//                          NHYDRATE.ORG                                *
//             Copyright (c) 2006-2012 All Rights reserved              *
//                                                                      *
//                                                                      *
//This file and its contents are protected by United States and         *
//International copyright laws.  Unauthorized reproduction and/or       *
//distribution of all or any portion of the code contained herein       *
//is strictly prohibited and will result in severe civil and criminal   *
//penalties.  Any violations of this copyright will be prosecuted       *
//to the fullest extent possible under law.                             *
//                                                                      *
//THE SOURCE CODE CONTAINED HEREIN AND IN RELATED FILES IS PROVIDED     *
//TO THE REGISTERED DEVELOPER FOR THE PURPOSES OF EDUCATION AND         *
//TROUBLESHOOTING. UNDER NO CIRCUMSTANCES MAY ANY PORTION OF THE SOURCE *
//CODE BE DISTRIBUTED, DISCLOSED OR OTHERWISE MADE AVAILABLE TO ANY     *
//THIRD PARTY WITHOUT THE EXPRESS WRITTEN CONSENT OF THE NHYDRATE GROUP *
//                                                                      *
//UNDER NO CIRCUMSTANCES MAY THE SOURCE CODE BE USED IN WHOLE OR IN     *
//PART, AS THE BASIS FOR CREATING A PRODUCT THAT PROVIDES THE SAME, OR  *
//SUBSTANTIALLY THE SAME, FUNCTIONALITY AS THIS PRODUCT                 *
//                                                                      *
//THE REGISTERED DEVELOPER ACKNOWLEDGES THAT THIS SOURCE CODE           *
//CONTAINS VALUABLE AND PROPRIETARY TRADE SECRETS OF NHYDRATE,          *
//THE REGISTERED DEVELOPER AGREES TO EXPEND EVERY EFFORT TO             *
//INSURE ITS CONFIDENTIALITY.                                           *
//                                                                      *
//THE END USER LICENSE AGREEMENT (EULA) ACCOMPANYING THE PRODUCT        *
//PERMITS THE REGISTERED DEVELOPER TO REDISTRIBUTE THE PRODUCT IN       *
//EXECUTABLE FORM ONLY IN SUPPORT OF APPLICATIONS WRITTEN USING         *
//THE PRODUCT.  IT DOES NOT PROVIDE ANY RIGHTS REGARDING THE            *
//SOURCE CODE CONTAINED HEREIN.                                         *
//                                                                      *
//THIS COPYRIGHT NOTICE MAY NOT BE REMOVED FROM THIS FILE.              *
//--------------------------------------------------------------------- *
#endregion

using System;
using System.Collections;
using System.Drawing;
using System.Globalization;
using System.IO;
using System.Reflection;
using System.Resources;

namespace nHydrate.Generator.Common.Util
{
	public class ResourceHelper
	{
		#region static hashtable for holding resource libraries
		private static readonly Hashtable mResourceLibraries = new Hashtable();
		private static Hashtable ResourceLibraries
		{
			get
			{
				return mResourceLibraries;
			}
		}
		#endregion

		#region resource Helper creation
		private readonly ResourceManager rm;
		private ResourceHelper(string resourceFullName, Assembly assembly)
		{
			rm = new ResourceManager(resourceFullName, assembly);
		}
		#endregion

		#region public methods used to get information from the resource Helper
		public int GetInt(string key)
		{
			int returnVal;
			var resourceVal = rm.GetString(key);
			try
			{
				returnVal = int.Parse(resourceVal, CultureInfo.CurrentCulture.NumberFormat);
				return returnVal;
			}
			catch(Exception ex)
			{
				throw new Exception(String.Format("Resource cannot be cast to the suggested type. type: {0} key: {1}", "int", key), ex);
			}
		}

		public float GetFloat(string key)
		{
			float returnVal;
			var resourceVal = rm.GetString(key);
			try
			{
				returnVal = float.Parse(resourceVal, CultureInfo.CurrentCulture.NumberFormat);
				return returnVal;
			}
			catch(Exception ex)
			{
				throw new Exception(String.Format("Resource cannot be cast to the suggested type. type: {0} key: {1}", "float", key), ex);
			}
		}


		public string GetString(string key)
		{
			try
			{
				var resourceVal = rm.GetString(key);
				if(!StringHelper.Match(resourceVal, string.Empty, true))
				{
					return resourceVal;
				}
				else
				{
					throw new Exception(String.Format("Resource cannot be found or is empty. key: {0}", key));
				}
			}
			catch(Exception ex)
			{
				throw new Exception(String.Format("Resource cannot be found or is empty. key: {0}", key), ex);
			}
		}
		#endregion

		#region resource Helper factory
		public static ResourceHelper GetResourceHelper(string resourceFullName, Type callingObjectType)
		{
			var uniqueName = resourceFullName + callingObjectType.Assembly.FullName;
			lock(ResourceLibraries.SyncRoot)
			{
				if(!ResourceLibraries.Contains(uniqueName))
				{
					var rl = new ResourceHelper(resourceFullName, callingObjectType.Assembly);
					ResourceLibraries.Add(uniqueName, rl);
				}
			}
			return (ResourceHelper)ResourceLibraries[uniqueName];
		}
		#endregion

		#region get resources as stream
		public static string GetResourceFileAsString(System.Reflection.Assembly assembly, string resourcePath)
		{
			
			var returnVal = string.Empty;
			using(var resourceStream = GetResourceFileAsStream(assembly, resourcePath))
			{
				var sr = new StreamReader(resourceStream, System.Text.Encoding.UTF8);
				returnVal = sr.ReadToEnd();
			}
			return returnVal;
		}

		public static Stream GetResourceFileAsStream(System.Reflection.Assembly assembly, string resourcePath)
		{
			//Assembly asbly = callingObjectType.Assembly;
			var stream = assembly.GetManifestResourceStream(resourcePath);
			var sr = new StreamReader(stream, System.Text.Encoding.UTF8);
			return sr.BaseStream;
		}

		public static Image GetResourceFileAsImage(System.Reflection.Assembly assembly, string resourcePath)
		{
			Bitmap returnImage = null;
			using(var stream = GetResourceFileAsStream(assembly, resourcePath))
			{
				returnImage = new Bitmap(stream);
			}
			return returnImage;
		}

		public static Icon GetResourceFileAsIcon(System.Reflection.Assembly assembly, string resourcePath)
		{
			Icon returnImage = null;
			using(var stream = GetResourceFileAsStream(assembly, resourcePath))
			{
				returnImage = new Icon(stream);
			}
			return returnImage;
		}
		#endregion
	
	}
}
